Ford Mustang (1999-2004) Service Manual: Transmission Description (Description and Operation)
The 4R70W has the following features:
- Wide ratio gears
- Four speeds
- Rear wheel drive
- Automatic
- Electronic shift
- Torque converter clutch control
- Line pressure controls
The transmission uses Ravigneaux-style double-pinion gearset with two bands, one one-way roller clutch, one mechanical diode and four friction clutches to produce four forward gears and Reverse.
4R70W Automatic Transmission

Automatic Transaxle/Transmission
General Specifications
a - MERCON V is not interchangeable at this time with the current MERCON
fluids. Check the
transmission fluid level indicator to determine the correct fluid and refer to
the ...
Identification Tags
All vehicles are equipped with a Vehicle Certification Label, located
on the driver side door lock post.
For correct transmission identification, refer to the code in the space
marked TR.
...
Other materials:
Safety Belt Buckle - Front Seat
Removal
Driver and passenger seat
1. Remove the front seat. For additional information, refer to Section.
2. Remove the nut and the safety belt buckle.
Driver seat only
3. Disconnect the safety belt buckle electrical connector.
Installation
1. To install, ...
Disassembly
Main Control Valve Body - Disassembled View
1. Remove the torque converter clutch (TCC) solenoid and the shift solenoid.
1. Remove the bolt.
2. Remove the shift solenoid.
3. Remove the TCC solenoid.
2. Remove the two reinforcement plate ...
Electronic Engine Controls (Description and Operation)
The electronic engine controls consist of the following:
powertrain control module (PCM)
throttle position (TP) sensor
idle air control (IAC) valve
engine coolant temperature (ECT) sensor
cylinder head temperature sensor
camshaft position ...
